| 1973 |
83%
|
| 2011 |
67%
|
| 2003 |
59%
|
| 2006 |
61%
|
| 1992 |
80%
|
| 1985 |
77%
|
| 1990 |
54%
|
| 1964 |
85%
|
| 2019 |
76%
|
